Dust collector



VV. T. BLANEY.

DUST COLLECTOR. APPLICATION mgm APn.10.1922.

A QL Thieme@ Aug. 29? 1922.7

`WILLIAM THOMAS BLANEY. or PETERBOROUGH, ONTARIO, CANADA,

Application filed April 10, 1922.

To f// wlmi/i t may concer/i lie it known that I. lVILLiAM THoMAsliixxicr. a subject-ot' the King ot Great llritain` and a resident otthe city ot' Peterborough. in the county ot' Peterborough` in theProvince ofOntario. Canada, have invented certain new and uset'ulImproveconsists essentially of the arrangement and a pipe 9 leads to'thecarburetor.

construction oic parts hereinafter more particularly explained. K

Fig. 1 is a side elevation ot my device. Fig. 2 is a sectional viewthrough the outer casing showing vthe inner casing in full.

Fig. 3 is a sectional view through Fig.

Fig. 4 is a plan View through Fig. 2 on line 4 4.

lnA the drawings like letters oi reference indicate corresponding partsin each figure. 1 indicatesthe outer casing which is preterably torinedby two cylindrical portions B and 4, the portion 3 being preferablyformed with a fiat end 5, reinforcing annular beads (S and 7 and theoutlet orifice 8 from which The upper edge ot the casing portion 3 isbent inward at an incline at 10 for a purpose which will hereinafterappear.

The upper end of the casing portion 4 is.

preferably domed as indicated at. 11 and is also provided with areinforcing bead 12 adjacent to its lower edge. In proximity to thelower edge of the casing portion 4 are 'Formed a series of inletoriiices 13. 14 is an inner cylindrical casing. the exterior surface ofwhich is spaced apart from the`in- Specification of Letters Patent.

Patented Aug. 29, i922.

seriai No. 551,175.

central opening 18 in the upper end of the inner casing. i

.19 is an annular channel ring which tits within the outer casing 1 andupon which, intermediately of its width. rests the lower edge of theinner casing 14. 20 is a cvlindrical screen formed of fine mesh and atits lower end with a hem 21 with which is inserted a wire ring 22 which:is slightly greater in diameter than the interior diameter et theannular ring 19. screen 20 in position it is drawn up through the'oriiceformed by the annular ring 19 until the wire ring 22 bearsagainst thelower edge of the ring 19. 23 is a ring which fits within the annularring 17. 24 isa similar ring of .Slightly smaller diameter than the ring23 and adapted to fit within the upperend of the cylindrical screen 20.In placing the upper end of the screen in position the In placing the Kouter ring 23is placed within the ring 17` and the inner ring isinserted within the upper end of the cylindrical screen. The upper endof the cylindrical screen |is"then drawn into the ring 23 and the ring24 forced upward into thel ring 23 so as to gripthe upper edge ot thescreen between itself and the ring 23.

It will be noted that the cylindrical screen 20tapers slightly upward,therefore providing inclined sides for a purpose v4which willhereinafter appear. 25 is a series of deliect- `ing plate strips whichare located in the interspace 16 in an inclined position as will beclearly seen on referring to Figs. 2 and 4. -Having described theprincipal parts involved in my invention I will briefiy describe theoperation of the same.

The air is drawn by the suction action of the pist-ons of the enginethrough the orifice 13 and passes upwardly through the inter- Space 16into contact with the face strips 25 and is deflected thereby so as tohave a whirl# lng motion as it passes up over the top of .the-

inner casing 14 and is directed downward by the dome topy 11 yso as topasslinto the' centre of the cylindrical and tapered 'screen 2() and isdrawn through the screen into the terior surface of the casing 1 so asto form ,outermost portion 'of the casing 14 passing intervening annularducts 15 and 16 sep arated apart by the inwardly inclinedportion 10 ofthe outer casing portion 3, which incline portion fits around theexterior of the innerv casing 14. 17 is an annular channel ring whichfits within the upper end of the cylindrical body of the casing 14forming a from thence through the orifice 26 into the interspace 15passing around the exterior of the inner casing 14 to the outlet orifice8 from which the air is conducted to the carburetor. As the air followsthis course and passes through the screen 20, the dust is separated fromthe air and tends to cling to wey `the inner surface of the screen, thepurified air passing from the screen to the outlet 8. A certain amountof dust remains upon the Surface of the screen but as it gathers itgradually drops oft', dueto the vibration of the engine falling downintothe lower end of the casing l thus automatically cleaning the screen. Itmay also be pointed out that a certain amount of back air pressure isexerted around the exterior of the screen thereby preventing any dangerof the dust being drawn through the screen, also by meansof the inclinedportion l() any danger of moisture due to rain is prevented fromentering` into the interior of thex device and thereby detrimentallyeiiecting the operation of the device due to the air becoming moistureladen. It will also be seen that I have devised a device which isentirely enclosed and therefore cannot be tampered with.

That I claim as my invention is:

l. A dust collector comprising an outer casing. having an outlet orificeadapted to be connected to a suction source and an inlet orifice throughwhich the outer air is adapted to pass, an inner casing spaced apart'from the outer ca'sing to form an interspace, an annular dividing wallextending across such interspace between 'the outlet and inlet orifices,a cylindrical screen supported within the inner casing and into one endof which the air from the inlet orifice is adapted to be drawn'so `as topass through the Walls thereofto thel outlet orifice at theopposite sideof the aforesaid dividing wall.v

the inletorifice is adapted to be drawn so l as to pass through thewalls thereof to the outlet orifice at the opposite side of theaforesaid dividing wall, and a series of inclined deflecting face stripslocated in the interspa'ce above the dividingwall and the inlet orifice.

3. A dust collector comprising an outward enclosed casing, having anoutlet orice adapted to be connected to a suction source and an inletorifice for the passage of exterior air, an annular supporting membersecured within the inner casing below the outf let orifice, acylindrical casing body supported thereon and spaced apart from the Wallof the outer casing and having orifices in proximity to its lower end anannular dividing Wall extending between the inner and outer casingsintermediately of their height, an annular member secured within theupper end of the inner casing to form an orifice of smaller diameterthan the orifice formed by the aforesaid annular member, and acylindrical upwardly tapered screen secured at its ends Within theaforesaid orifice.

WILLIAM THOMAS BLANEY.

